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Finding the Fourth Proportional to 111,649.14, 167,278.70 and 93,048.71

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Solution

The fourth proportional to 111,649.14, 167,278.70 and 93,048.71 is: 139,410.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,649.14 : 167,278.70 = 93,048.71 : x
  2. Step 2: Convert to fraction form
    111,649.14/167,278.70 = 93,048.71/x
  3. Step 3: Cross multiply
    111,649.14x = 167,278.70 × 93,048.71
  4. Step 4: Simplify right side
    111,649.14x = 15,565,065,943.84
  5. Step 5: Solve for x
    x = 15,565,065,943.84/111,649.14
  6. Step 6: Final answer
    x = 139,410.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.